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1532
resultados
Última actualización
18/03/2026 [07:26:00]
Resultados 1150 a 1175 de 1532
Resumen de: US20260066294A1
Disclosed are negative electrodes, all-solid-state batteries, and fabrication methods thereof. The all-solid-state battery includes a positive electrode layer, a negative electrode layer including a negative electrode current collector, and a negative electrode coating layer on the negative electrode current collector, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer. The negative electrode layer includes lithiophilic metal, carbon, an additive, and a porous polymer composite. The porous polymer composite has a particulate shape. The additive includes a binder. An amount of the porous polymer composite in the negative electrode coating layer is greater than the amount of the additive in the negative electrode coating layer.
Resumen de: US20260066295A1
The present invention relates to a negative electrode active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the negative electrode active material for a rechargeable lithium battery includes graphite including secondary particles in which primary particles are assembled; and amorphous carbon present inside the secondary particles, wherein a ratio of the average particle diameter D50 of the amorphous carbon to the average particle diameter D50 of the primary particles is 0.1 to 0.5.
Resumen de: US20260066287A1
A solid electrolyte-electrode assembly, as well as an all-solid-state battery including the assembly are described. For instance, a solid electrolyte-cathode assembly can be formed by co-rolling a plurality of cathode particles and a plurality of solid electrolyte particles, which results in the simultaneous production of the assembly and makes it possible to achieve improved interface resistance between the electrolyte membrane and electrode to improve battery performance. Also, the resulting electrolyte can be thin, which improves the energy density, while also maintaining excellent strength by using an electrode as a support.
Resumen de: US20260066269A1
The present invention provides a secondary battery including a negative electrode having a negative electrode active material layer containing a negative electrode active material, a positive electrode facing the negative electrode and having a positive electrode active material layer containing a positive electrode active material, a separator interposed between the negative electrode and the positive electrode, and an electrolyte, wherein the negative electrode active material includes a silicon-based active material and an N/P ratio calculated by a specific equation is 1.92 to 2.60.
Resumen de: US20260062295A1
The invention relates to a composition comprising a salt composed of a sodium cation and an anion of formula (II):wherein R1 and R2 independently represent a fluorine atom or a perfluorinated group, the composition having an acetamide content of from 0.1 to 1000 ppm by weight. The invention also relates to a process for preparing this composition and to an electrolyte comprising same.
Resumen de: US20260066442A1
An energy storage assembly device for an aerosol generation device includes a housing intended for housing a battery; a vent component configured to vent pressurized gases from within the housing upon a predetermined pressure in the housing; whereby the housing has an elongated shape; and the housing includes on a circumference of the housing at a first extremity which is free on the inside from being filled by the battery, a first plurality of holes blinded by a blinding member, the first plurality of holes and the blinding member each being part of the vent component.
Resumen de: US20260066357A1
An energy storage element includes an electrode-separator assembly in the form of a cylindrical winding having an anode, a separator, and a cathode. The anode includes a ribbon-shaped anode current collector with longitudinal edges and a free edge strip. The cathode includes a ribbon-shaped cathode current collector with longitudinal edges and a free edge strip. The energy storage element further includes a housing closed in an airtight and liquid-tight manner. A first longitudinal edge corresponding to a first free edge strip forms an area on which a metal part covering a first end face of the cylindrical winding lies flat, and a bottom of the housing includes an aperture into which a projection of the metal part is inserted or through which the projection protrudes.
Resumen de: US20260066396A1
The present disclosure provides a busbar for a battery pack having a plurality of battery cells separated by respective thermal barriers. The busbar is configured to provide electrical connection between battery cells within the battery pack by way of electrical connection arrangements. The busbar further comprises a plurality of channels, each channel configured to receive a thermal barrier. Each channel includes a first portion sized to accommodate a thermal barrier and a second portion adjacent an opening of the channel which is wider than the first portion of the channel such that, during assembly of the busbar into a battery pack, the second portion of each channel is configured to guide a thermal barrier into the respective channel.
Resumen de: US20260066258A1
A method for producing an electrode of a solid battery including at least the following steps: a production of an electrode on a support, the electrode having an upper face opposite the support, the electrode having at least one cavity extending in a hollow section from its upper face, a formation of an ionically insulating layer, called barrier layer, on the upper face of the electrode and in the at least one cavity, then a removal of the barrier layer, so as to expose the upper face of the electrode, while leaving in place the portion of the barrier layer extending into the at least one cavity.
Resumen de: WO2026044883A1
An explosion-proof valve and a case, relating to the technical field of explosion-proof valves. The explosion-proof valve is provided on the case, and comprises a valve body, a retaining cap, and a breathing mechanism. A breathing channel is provided on the valve body. The retaining cap is slidably connected to the valve body, and a gap is formed between the retaining cap and the valve body. The breathing mechanism is movably connected to the retaining cap, and a breathing switch is formed between the breathing mechanism and the valve body. When the breathing mechanism abuts against the valve body, the breathing switch is turned on, and the interior of the case is communicated with the outside. When the breathing mechanism is separated from the valve body, the breathing switch is turned off, and the interior of the case is not communicated with the outside.
Resumen de: WO2026044873A1
A positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery, and an electrical device, relating to the technical field of batteries. In an XRD pattern of the positive electrode active material, a characteristic peak C(018) corresponding to a (018) crystal plane of the positive electrode active material exhibits a bimodal distribution, comprising a first characteristic peak C1(018) and a second characteristic peak C2(018); and a characteristic peak D(110) corresponding to a (110) crystal plane of the positive electrode active material exhibits a bimodal distribution, comprising a first characteristic peak D1(110) and a second characteristic peak D2(110). IC1 denotes the intensity of the first characteristic peak C1(018), ID1 denotes the intensity of the first characteristic peak D1(110), and 0.80 ≤ ID1/IC1 ≤ 1.00. Thus, the first charge-discharge efficiency, discharge capacity, cycling performance, and safety performance of a battery comprising the positive electrode active material can be effectively improved, and the impedance of the battery can be reduced.
Resumen de: WO2026044769A1
Provided in the embodiments of the present application are a secondary battery and an electrical device. The secondary battery comprises a housing, an electrode assembly and a first tab. The electrode assembly is arranged in the housing, and the electrode assembly comprises a first electrode plate, a second electrode plate and a separator. The first tab is welded to the first electrode plate. The first tab comprises a first surface and a second surface arranged opposite to each other in the thickness direction of the first tab, wherein a partial surface of the first surface is connected to the first electrode plate, and the second surface faces and makes contact with the separator. The first tab further comprises a third surface and a fourth surface, wherein the third surface and the fourth surface are located on two opposite sides of the first tab in the width direction thereof. The included angle between the second surface and the third surface is defined as α, where 120°≤α≤175°; or the third surface is smoothly connected to the second surface. In the secondary battery, the structure of the first tab facilitates a reduction in the pressure of the first tab on the separator at a connection of the second surface and the third surface, thereby reducing the possibility of damage to the separator caused by the first tab, reducing the possibility of a poor K value of the secondary battery, and improving the cycle life of the secondary battery.
Resumen de: US20260066360A1
A battery may include an electrode assembly including a first electrode, a second electrode and a separator interposed between the first electrode and the second electrode. The first electrode may include a first active material region coated with an active material layer along a winding direction and a first uncoated region not coated with the active material layer. The battery may further include a first current collector coupled to at least part of the first uncoated region on the electrode assembly, a battery housing to accommodate the electrode assembly and the first current collector, and an insulator interposed between an inner surface of the battery housing facing the first uncoated region or the first current collector and the first uncoated region or the first current collector to block an electrical connection between the first uncoated region and the battery housing.
Resumen de: US20260066345A1
An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte are disclosed. The electrolyte may include a non-aqueous (e.g., water-insoluble) organic solvent, a lithium salt, a first additive that includes a cesium salt compound represented by Chemical Formula 1-1 or Chemical Formula 1-2, and a second additive that includes a phosphazene compound represented by Chemical Formula 2.
Resumen de: US20260066299A1
A salt-philic solvent-phobic (SP2) polymer coating on a lithium anode, sodium anode, or a silicon anode selectively transports salt over solvent and is configured to promote salt-derived SEI formation on the anode. The SP2 coating can include a polymer backbone, a first side chain comprising a first moiety having salt affinity, and a second side chain comprising a second moiety immiscible with polar aprotic solvents.
Resumen de: US20260066340A1
A method for preparing a solid-state electrolyte membrane structure. The method includes: S1, proportionally mixing raw materials of a solid-state electrolyte to obtain a mixed powder; S2, mixing the mixed powder, a binder and a solvent together to obtain a solid-state electrolyte precursor slurry; S3, coating the solid-state electrolyte precursor slurry on a substrate to obtain a solid-state electrolyte precursor coating layer; and S4, subjecting the solid-state electrolyte precursor coating layer to a laser treatment to obtain the solid-state electrolyte membrane structure.
Resumen de: US20260066433A1
Array housing designs are disclosed for battery arrays of a traction battery pack. An exemplary battery array may include an array housing having a ribbed structure that includes at least one rib (e.g., external and/or internal) configured for increasing the structural stiffness of the battery array. A groove may extend at least partially through the rib, and an adhesive/sealant may be disposed within the groove for securing a surrounding structure relative to the array housing and thereby structurally integrating the battery array. In some implementations, the groove may receive a fin of a thermal barrier assembly of a battery cell stack of the battery array.
Resumen de: US20260066444A1
A battery module includes a housing which accommodates a plurality of battery cells therein, and has a vent-hole portion formed therein; a top cover which is movably installed on the housing so as to open/close the vent-hole portion; an elastic member which is installed to apply an elastic force to the top cover in a direction in which the top cover opens the vent-hole portion; and a stopper configured to support the top cover so that the top cover maintains a closed state of the vent-hole portion. The stopper can lose or reduce support to the top cover due to changes in temperature or pressure.
Resumen de: US20260066281A1
A negative electrode active material particle, a negative electrode comprising the same, and a secondary battery comprising the negative electrode are provided. The negative electrode active material particle comprises a core and a coating layer on the core, the core comprising a silicon-based particle, and the coating layer comprising a polymer comprising an aromatic cyclic monomer unit including a heteroatom and having an alkyl group at a side chain, and thereby prevents side reactions such as the production of hydrogen gas during aqueous mixing of a slurry without increase of resistance.
Resumen de: US20260066270A1
A method for preparing an aqueous cathode slurry composition, specifically including: (a) performing a first mixing step by mixing a binder and an aqueous solvent; and (b) mixing lithium iron phosphate (LiFePO4) as the cathode active material and a conductive agent into the mixture from step (a), followed by performing a second mixing step using at least one process selected from the group consisting of high rotation energy dispersion mixing, compression pressure mixing, and rotation shear mixing.
Resumen de: US20260066290A1
A positive electrode active material is provide, the positive electrode active material including a first positive electrode active material including a lithium iron phosphate-based compound; and a second positive electrode active material including lithium nickel-based composite oxide; wherein the second positive electrode active material is included in an amount of about 1 wt % to about 15 wt % based on 100 wt % of the first positive electrode active material and second positive electrode active material. The positive electrode active material, the positive electrode including the same, and the rechargeable lithium battery according to some example embodiments may achieve high capacity and excellent or suitable stability.
Resumen de: US20260066268A1
A mixed metal air battery comprises an anode containing at least two metals, which enables the battery to utilize a wide range of metal combinations. The cathode is composed of hydrogen, oxygen, or a mixture of both, allowing for the battery. An electrolyte, in the form of a saturated alkali hydroxide solution, is used to facilitate the flow of ions between the anode and cathode. The electrolyte is in fluid communication with both the anode and cathode, ensuring efficient energy transfer. The battery's design enables it to utilize its anode and cathode materials to generate power, making it a promising alternative to traditional batteries. The combination of metals, gases, and electrolytes creates a unique and efficient energy storage system.
Resumen de: US20260066279A1
A positive electrode active material contains a lithium transition metal oxide in the form of a secondary particle in which primary particles are aggregated, wherein a zirconium-containing coating film is formed on the surface of the lithium transition metal oxide secondary particle and at the interface between the primary particles present inside the secondary particle. A method of making the positive electrode active material is also provided.
Resumen de: WO2026045776A1
The present invention relates to the technical field of membrane separation. Disclosed is a preparation method for a high-selectivity lithium super-ion conductor membrane. In the method, a lithium super-ion conductor material, i.e. Li7-xLa3Zr2-xTaxO12 (LLZTO), is used as an aggregate and polyvinyl alcohol is added as a sintering aid, LLZTO is firstly pressed into a green body by means of a tableting molding technique, and then the green body is calcined at a high temperature to obtain an LLZTO membrane. In order to further improve the compactness and separation performance of the LLZTO membrane, an organic crosslinking aid is studied and introduced to modify pores of the LLZTO membrane to obtain a dense lithium super-ion conductor membrane. The lithium super-ion conductor membrane exhibits excellent ion separation performance, which provides a reference concept for related fields such as efficient recovery and extraction of lithium resources.
Nº publicación: WO2026045836A1 05/03/2026
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2026045836A1
An energy storage system and a control method therefor. The energy storage system (10) comprises: a battery (12) configured to store and release energy; an energy storage converter (13) configured to be connected to a power supply source and the battery (12); and a thermal management system (11). The thermal management system (11) comprises: a first liquid cooling circulation loop (20) comprising a first heat exchanger (21) configured to perform heat exchange with the battery (12); a second liquid cooling circulation loop (30) comprising a second heat exchanger (31) configured to perform heat exchange with the energy storage converter (13); and a third heat exchanger (111) connected to both the first liquid cooling circulation loop (20) and the second liquid cooling circulation loop (30), and configured to achieve heat exchange between a cooling liquid in the first liquid cooling circulation loop (20) and a cooling liquid in the second liquid cooling circulation loop (30).
BOPI
Sede Electrónica
